I would be pretty surprised if a lot of schools followed HBS's lead. Most schools are
not interested in making it harder for people to apply. There's huge competition between the schools for the best students.
Also: GMAC was literally started and is owned by a consortium of business schools (
https://www.gmac.com/about-us). The member schools were definitely involved in the decision to drop the AWA in the first place. I'm guessing that GMAC is seriously annoyed by HBS's decision. (I know I am, so I can only imagine how annoyed they are! 😒)
So, my best speculation is that HBS is doing what it's doing because...it's HBS. They can do whatever they want and everyone
* will still apply. ¯\_(ツ)_/¯ They don't need to worry about losing applicants—they already get a ridiculous number as it is. And MIT has also always moved to the beat of their own drummer as well.
I will add that HBS has been very clear that you do not need to take the BWA (the new name is the Business Writing Assessment) unless and until you're invited to interview. So I would view it this way: Don't worry about it now. If you're invited to interview, then YAY, you were invited to interview!! 😎
And then spend a couple of hours prepping for this thing and take it. Aim for a score of 5 or higher, just as in the old days. You don't need a perfect score—they're not going to give preference to someone who scores a 6 vs. a 5. You just need to show that you can communicate decently in an extemporaneous format. The actual decision will come down to other much more important factors.
(
*Just a thought: Remember how your parents nagged you not to do something just because everyone else was doing it? That might be good advice to consider as you decide where to apply to b-school, too...)